package 设计模式.建造者模式.demo2;
//建造者
public abstract class  Builder {

    abstract Builder buildA(String msg);//汉堡
    abstract Builder buildB(String msg);//可乐
    abstract Builder buildC(String msg);//薯条
    abstract Builder buildD(String msg);//甜点
    //套餐
    abstract Product getProduct();
}
